module.exports={
    // plugins:[
    //         '@babel/plugin-transform-optional-chaining'
    //     ],
    presets:[
        [
            '@babel/preset-env',{
                targets:{
                    edge:'17',
                    firefox:'60',
                    chrome:'67',
                    safari:'11.1',
                },
                useBuiltIns:'usage',
                corejs:'3.38.1'
            }
        ]
    ]
}